Question Summary:
I would highly appreciate if you could tell the importance and “WHY” are we not supposed to wrap the baby in “yellow clothe” but in “white.” ?

Question Detail:

Assalam O Alaikum Respected Imam,

I will be father in July inshAllah. I was reading online that Prophet Mohammad salallahu alayhi wasallam had advised Fatima radiallahu anha to not wrap the new  born (Al-Hassan) in a Yellow Clothe. I tried searching for the reason and I was unable to trace it.

I would highly appreciate if you could tell the importance and "WHY" are we not supposed to wrap the baby in "yellow clothe" but in "white." Are other colors acceptable apart from White? I would highly appreciate your response. Thanking you in advance.

Answer :

Assalāmu `alaikum Warahmatullāhi Wabrakatuh,
We could not locate the incident referred to in your query. A person should be vigilant as to what he reads on the net as there is much unauthentic information available on the net. 
It is makrūh (disliked) for males to wear yellow as Nabi (Sallalāhu `alayhi wa sallam) mentioned this to be the clothing of the non-believers. (Muslim 2077)
 
صحيح مسلم - عبد الباقي - (3 / 1647)
2077 حدثنا محمد بن المثنى حدثنا معاذ بن هشام حدثني أبي عن يحيى حدثني محمد بن إبراهيم بن الحارث أن بن معدان أخبره أن جبير بن نفير أخبره أن عبد الله بن عمرو بن العاص أخبره قال * رأى رسول الله صلى الله عليه وسلم علي ثوبين معصفرين فقال إن هذه من ثياب الكفار فلا تلبسها
 
Sayyidunā `Amr ibnul `Ās (radiyallāhu ta`ālā `anhu) reports that the Messenger of Allāh (sallallāhu `alayhi wasallam) saw me wearing two pieces of cloth dyed in safflower. He said: Verily this is the clothes of the non-believers, therefore do not wear it. (Muslim 2077)
 
المحيط البرهاني للإمام برهان الدين ابن مازة - (8 / 42)
ويكره لبس الثوب المعصفر للرجال، روي عن ابن عمر رضي الله عنهما أنه قال: نهاني رسول الله صلى الله عليه وسلم عن لبس المعصفر وقال: «إياكم والحمرة فإنها زي الشيطان»، وفي «المنتقى»: وكان أبو حنيفة رضي الله عنه يكره للرجال أن يلبسوا الثوب المصبغ بالمعصفر أو بالورس أو بالزعفران للأثر الوارد فيه،
 
It is makrūh for males to wear clothing dyed in safflower. It has been narrated on the authority of Ibn `Umar (radiyallāhu ta`ālā `anhu) that the Messenger of Allāh (sallallāhu `alayhi wasallam) prohibited me from wearing clothes dyed in safflower. He said: Abstain from red as it is the attire of shaytān. It is mentioned in al-muntaqā that Imām Abu hanīfah (May Allāh be pleased with him) disliked males wearing clothes dyed in safflower or wars (Yemenite dye-yielding plant) or in saffron due to the traditions narrated regarded them.
 
إعلاء السنن 17/351
And Allah Ta’āla Knows Best
Mufti Ishaaq E. Moosa
Benoni.
Checked and Approved by,
Mufti Ebrahim Desai.
www.daruliftaa.net